Add device info to Chromecast

[balloob]

Description:

Add device info to Chromecast.

        "devices": [
            {
                "config_entries": [
                    "da9310b48d94474088d0f26e7cca851a"
                ],
                "connections": [],
                "id": "102d6511c8794ad5884a38cf4377beeb",
                "identifiers": [
                    [
                        "cast",
                        "ae7943b2dcfb1"
                    ]
                ],
                "manufacturer": "Google Inc.",
                "model": "Google Home",
                "name": "Keuken",
                "sw_version": null
            }
        ]

Checklist:

• The code change is tested and works locally.
• Local tests pass with tox. Your PR cannot be merged unless tests pass

[Kane610]

Identifiers should be set with tuples

[balloob]

Tuples with 1 entry are very error prone, as the comma is what makes it the tuple. We can pass in list because DeviceEntry will convert it to a set anyway.

[Kane610]

Ok, then perhaps I should update deconz to do the same?

[balloob]

Made them sets. You're right that it's better to stay in line with how they will end up on the device.